TBL Steel

TBL Steel

Steel name: TBL
Diagram No.: 1801
Chemical composition in weight %: 0.25-0.35% C, max. 0.40% Si, 1.10-1.30% Mn, max. 0.040% P, max. 0.040% S, max. 0.50% Cr, 0.0008–0.0040% B
Steel group: Boron steels, structural steels
Properties: Wear protection for agricultural machinery and concrete mixer trucks.
Applications: For use in agricultural machinery, the steels are usually hardened after processing. As a result of alloying with boron, TBL grades can be hardened without diffi culty in water, oil or polymer dispersion. TBL and TBL PLUS are therefore particularly suited to structures which require high wear resistance, e.g. in harrows, packers and plows.
Reference: Not shown in this demo version.

Heat Treatment
The recommended austenitizing temperature is 900°C. The material temperature at the start of quenching in water should be between 860°C and 910°C. If quenching is carried out in oil, the temperature at the beginning should be between 900°C and 950°C.

Tempering Diagram

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Other Steel Data links
Carbides in Steel
CCT and TTT Diagrams of Steels
CCT and TTT Diagram Calculating Service
Hardenability Diagrams of Steels
Hardenability Calculating Service
Macro Defects in Steel
Metal Etchants
Non-Metallic Inclusions in Steel
Semiconductor Etchants

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